About National City, CANational City is located in California. National City, California has a population of 62,678. National City is more family-centric than the surrounding county with 37% households with children. The county percentage for households with children is 30%. The median household income in National City, California is $43,923. The median household income for the surrounding county is $69,818 compared to the national median of $57,525. The median age of people living in National City is 32.4 years. National City WeatherThe average high temperature in July is 76.1 degrees, with an average low temperature in January of 46.1 degrees. The annual precipitation is 9.95. National City MapReal Estate Near National CityNearby CitiesNearby Cities Homes for Sale |